This dramatic CCTV shows a gang of men attacking cash-in-transit workers in broad daylight.

The eight men were today jailed for carrying out a string of robberies in which they stole more than £110,000.

Footage released by the Metropolitan Police shows gang members targeting security staff in Finchley and Highgate, north London, as they made deliveries.

The group trawled the streets of the capital in stolen cars and motorbikes, including a Ford Focus, Mazda RX8, a stolen Porsche Carrera, and two high value stolen BMWs, looking for victims, police said.

After spotting a cash-in-transit guard making a delivery, they would follow them before attacking and robbing them of cash boxes when they saw an opportunity.

The men then drove to inconspicuous areas, such as underground car parks, where they used angle grinders and sledgehammers to break open the boxes.

A cash-in-transit guard can be seen during a delivery in Finchley, north London, before he's attacked by the gang (Image: MET Police)

The gang trawled the streets of London on stolen motorbikes before spotting a victim (Image: MET Police)

Some of the cash was subsequently stained with security dye so the gang fed these notes into gaming machines at betting shops.

After building up credit, they cancelled their play, retrieving their ample change from the machine in clean notes.

The dyed money was only discovered by staff when they cashed up at the end of the day.

The gang stole a total of more than £110,000 between February and June 2014.

Charles Durkin was a serving prisoner at HMP Ford and had been allowed day release at the time of a robbery on February 14, 2014.

On June 26, 2014, a number of the suspects deviated from their usual activities and carried out a smash and grab raid at Louis Vuitton, Sloane Street, in Kensington and Chelsea borough.

Charles Durkin was a serving prisoner at HMP Ford and had been allowed day release at the time of a robbery on February 14, 2014 (Image: Metropolitan Police)

Daryl Salisbury, 26, from North London, received a total of eight years and nine months, taking in two years and four months for the plot (Image: Metropolitan Police)

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The Kelly brothers, Lewis and Salisbury were arrested for the offence later that morning along with the proceeds of the Louis Vuitton 'Smash and Grab'.

Police were then able to continue to piece together theirs and others’ involvement in further offences involving attacks on cash-in-transit guards.

The Kelly brothers, Lewis and Salisbury were charged in relation to the series of 13 cash-in-transit robberies in July 2015.

In September and October 2015, detectives arrested Smith, Durkin and Colligan who were then charged and then finally Sokhi in February 2016 when he was located after having been on the run for six months.

DC David Reed, the investigating officer for the Flying Squad, said: "This organised criminal group carried out a string of brazen robberies on cash in transit security guards.

"In order to evade detection the group committed crimes outside of the London area as far as Bournemouth, using stolen cars and mopeds and constantly changing their mobile phones."

David Kelly, 31, from North London, came “at the top end of the conspiracy” and was handed two-and-a-half years for the plot (Image: Metropolitan Police)

Alan Kelly, 22, received 21 months for the cash-in-transit robberies, making a total of four years and nine months (Image: Metropolitan Police)

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“However, due to the tenacity of the investigating team the gang has been brought to justice after a two year investigation.

"The convictions today highlight the professionalism and detective ability of the Metropolitan Police Flying Squad in combating serious and organised crime in the UK".

Trainee barber Lewis, 30, from Barnet, a “prominent member of the gang”, was jailed for a total of eight years, including two years for the cash-in-transit conspiracy, at the Old Bailey.

Salisbury, 26, from North London, received a total of eight years and nine months, taking in two years and four months for the plot.

He took part in six of the 13 cash-in-transit robberies for which he was to receive a share, the court heard.

David Kelly, 31, from North London, came “at the top end of the conspiracy” and was handed two-and-a-half years for the plot, making nine-and-a-half years in all.

Lee Smith, 25, from West London, who had 25 past convictions, was sentenced to five years behind bars (Image: Metropolitan Police)

Lewis Sokhi, 22, from Barnet, was jailed for three years and four months (Image: Metropolitan Police)

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Apprentice brick layer Alan Kelly, 22, received 21 months for the cash-in-transit robberies, making a total of four years and nine months.

He was “heavily involved” in various roles including laundering activity, the court heard.